Nutrition Concise ICSE Class-9 Biology Selina Publishers

Revised Selina Publishers Biology Chapter-10 Nutrition in General

By PANDEY TUTORIAL Last updated Mar 18, 2020

Nutrition Concise ICSE Class-9 Biology Selina Publishers Chapter-10 . We Provide Solutions of Progress Check , MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type Questions and Structured / Applications / Skill Type Questions of Exercise-10 Nutrition (Nutrition in General ) Concise ICSE Class-9 Biology. Visit official Website CISCE for detail information about ICSE Board Class-9.

Nutrition Concise ICSE Class-9 Biology Selina Publishers

( Nutrition in General )

–: Select Topics :–

Progress Check (page-101),

A.MULTIPLE CHOICE TYPE,

B.VERY SHORT ANSWER TYPE,

C.SHORT ANSWER TYPE,

D.LONG ANSWER TYPE

E. Structured /Application/Skill Type

Note :- Before Viewing Concise Solutions of Chapter-10 Nutrition (Nutrition in General) . Read the whole chapter carefully with figure. Focus on Classes of food , Balanced diet in Nutrition Chapter-10. Malnutrition and deficiency diseases in Chapter-10 Nutrition.

Function of Carbohydrates , Fat , Protein , Minerals Salts (calcium , iodine, iron and sodium), Vitamins and Water in proper functioning of the body in Chapter-10 Nutrition . Source of Vitamins their function and Deficiency Diseases .

Progress Check (page-101),Chapter-10 Nutrition (Nutrition in General) Revised Biology Solutions for ICSE Class 9th

Question 1

Define malnutrion.

Answer 1

Malnutrition is a condition that results from eating a diet in which one or more nutrients are either not enough or are too much such that the diet causes health problems. Malnutrition is often used to specifically refer to undernutrition where an individual is not getting enough calories, protein, or micronutrients

Question 2

Category……………cane sugar

Answer 2

Carbohydrate-cellulose , Starch , Glycogen, Cane sugar

Protiens- Egg albumen,Milk, Pea

Question 3

What is…………..following.

(i)…………

(ii)…………..

(iii)…………..

Answer 3

(i)….3500 kcal/day

(ii)…..1100 kcal/day

(iii)……1450 kcal/day

Review Question

A. Multiple Choice Questions:Chapter-10 Nutrition Revised Concise Biology Solutions

Question 1

Which one of the following pairs of nutrients includes both as simple sugars (monosaccharides)?

(a) Sucrose and glucose

(b) Glucose and maltose

(d) Maltose and lactose

Answer 1

Question 2

Which one of the following is the correct matching of a nutrient mineral element and its one rich source?

(a) Calcium – Potato

(b) Sodium – Citrus fruits

(d) Potassium – Banana

Answer 2

(d) Potassium – Banana

Question 3

Marasmus is due to deficiency of:

(a) Vitamin C

(b) Carbohydrates

(d) Food

Answer 3

(b) and (c). (Note: Marasmus is mainly caused due to the deficiency of proteins, but as per the options provided, the right answer would be both carbohydrates and fats.)

Question 4

Fat-soluble vitamins are

(a) A, D and E

(b) B, C and D

(d) A, B and C

Answer 4

(a) A, D and E

Question 5

Which of the following is the best source of Vitamin A?

(a) Apple

(b) Honey

(d) Peanuts

Answer 5

Question 6

Ascorbic acid is Vitamin:

(a) C

(b) D

(d) A

Answer 6

(a) C

B. VERY SHORT ANSWER TYPE Chapter-10 Nutrition (Nutrition in General) Selina Biology Solutions

Question 1

Mention whether the following statements are true (T) or False (F).

(a) Cellulose in our food passes out undigested. (T/F)

(b) Kwashiorkor is a severe vitamin deficiency disease. (T/F)

(d) Foods protect us from disease and therefore antibiotics which protect us from disease are also foods.(T/F)

(e) Mineral salts contribute in regulating body processes.(T/F)

Answer 1

(a) T (True)

(b) F (False). Kwashiorkor is a severe protein deficiency disease.

(d) F (False). Antibodies are proteins produced by the immune system of the body, when it detects harmful substances called antigens.

(e) T (True)

Question 2

Name the mineral element that is needed for the following respectively:

(i) Strong teeth

(ii) Proper working of thyroid

(iii) Synthesis of hemoglobin

Answer 2

(i) Fluorine

(ii) Iodine

(iii) Iron

Question 3

Name the nutrients whose deficiencies cause the following diseases in humans:

(i) Pernicious anemia

(ii) Pellagra

(iii) Night blindness

(iv) Goiter

(v) Kwashiorkor

Answer 3

(i) Pernicious anemia – Vitamin B₁₂

(ii) Pellagra – Vitamin B₃

(iii) Night blindness – Vitamin A

(iv) Goitre – Mineral iodine

(v) Kwashiorkor – Proteins

Question 4

Mark the odd one out in each of the following cases and name the category to which the others belong:

(i) Xerophthalmia, Marasmus, Pellagra, Scurvy

(ii) Riboflavin, Thiamine, Folic acid, Iodine

Answer 4

(i) Odd term – Marasmus, Category – Vitamin deficiency diseases

(ii) Odd term – Iodine, Category – Vitamins

Chapter-10 Nutrition C. SHORT ANSWER TYPE Concise Biology Solutions

Question 1

Give two examples of each of the following and their usefulness, if any, in our body.

(i) Monosaccharides

(ii) Disaccharides

(iii) Polysaccharides

Answer 1

Carbo- Hydrate	Example	Uses
(i) Mono saccharides	1. Glucose	Provides an instant source of energy
(i) Mono saccharides	2. Fructose	Needed for maintaining a healthy body
(ii) Di saccharides	1. Sucrose	Needed for good health
(ii) Di saccharides	2 .Maltose	Further broken down to produce glucose molecule which provides energy to the body
(iii) Poly saccharides	1.Cellulose	Acts as roughage which prevents constipation
(iii) Poly saccharides	2. Glycogen	Reserve carbohydrate in humans and stored in liver and muscles

Question 2

Define and give one example of a balanced diet.

Answer 2

Balanced diet is defined as the one which contains all the principal constituents of food in proper quantity.

Balanced diet is the one that provides at least 50% of energy from carbohydrate, 35% from fat, and 15% from protein. The precise optimal quantities of each nutrient will vary with age, sex and activity.

Question 3

A doctor advises a bone patient to include more of milk and milk products in his everyday food. Why so?

Answer 3

Bones are generally made of calcium and iron. Milk and milk products are rich in calcium and Vitamin A. That is why, a doctor advises a bone patient to include more of milk and milk products in his everyday food to make his bones and teeth strong. Milk also prevents oxidation of Vitamin A. Calcium present in milk even helps in clotting of blood. Milk, is therefore a wholesome food.

D.LONG ANSWER TYPE Chapter-10 Nutrition Selina Publishers Biology Solutions

Question 1

List the six main purposes for which food is required by the body.

Answer 1

Need for food by the body:

(1) Growth: Food is necessary for building new protoplasm or cells. This helps in the growth of an organism.

(2) Repair: Food provides materials for the repair of worn out or damaged cells and tissues.

(3) Energy: We obtain energy from food. This energy is required for carrying out various life functions.

(4) Maintenance: Nutrients obtained through food help to maintain the chemical composition of cells.

(5) Provision of raw materials: Raw materials required for the synthesis of products such as enzymes, hormones, sweat, milk, etc. are obtained through food.

(6) Protection: Food provides protection from diseases and infection.

Question 2

Why are proteins necessary in our food? Name one protein deficiency disease of young children.

Answer 2

Proteins are the body building foods. They provide the chemical material for the growth and repair of body cells and tissues. At the time of emergency, proteins can also be oxidized in the body to release energy.

Protein deficiency disease of young children: Kwashiorkor

Question 3

Taking the examples of whole grain atta, fruit and green leafy vegetables, describe how roughage in our diet is useful.

Answer 3

Whole grain atta, fruits and green leafy vegetables are the chief sources of roughage.

(1) Roughage does not provide any nutrients to our body. It still has nutritive value and is essential for the proper functioning of the gut.

(2) It absorbs a lot of water and retains it. In this way, it keeps faecal matter soft preventing constipation.

(3) It combines with intestinal waste and makes it bulky.

(4) It helps in the formation of stools and helps our body to expel the undigested waste food.

(5) Roughage expands the intestinal lumen and helps in slow and smooth movement of food through the gastrointestinal tract. This movement is required for proper and complete digestion of food and for the elimination of intestinal waste.

(6) Roughage stimulates secretion from the digestive tract and also helps in removal of cholesterol, fatty secretory substances and toxins from the body.

Chapter-10 Nutrition Selina Biology Solutions E. STRUCTURED/APPLICATION /SKILL TYPE

Question 1

Given below is an incomplete table of vitamins, their rich sources and the related deficiency diseases. Fill in the blanks [(i)-(viii)] with only one suitable word for each.

Vitamin	Rich Source	Deficiency Disease
(i) ……	Whole grain	Beri- beri
Niacin	Milk	(ii) …..
(iii) …….	(iv) …..	Scurvy
Calciferol	(v) ……	(vi) ….
(vii) …..	Carrot, yellow fruit	(viii) ….

Answer 1

VITAMIN	RICH SOURCE	DEFICIENCY DISEASE
(i) Thiamine	Whole grain	Beri -beri
Niacin	Milk	(ii) Pellagra
(iii) Ascorbic acid	(iv) Citrus fruit	Scurvy
Calciferol	(v) Fish liver oil	(vi) Rickets
(vii) Retinol	Carrot, yellow fruit	(viii) Night blindness

Question 2

Complete the following table by filling the blanks:

Mineral	Function	Rich Source
Iodine
	Formation of haemo- globin
Calcium
Potassium

Answer 2

Mineral	Function	Rich Source
Iodine	Promotes the secretion of thyroxine by the thyroid gland	Iodised salt, sea foods
Iron	Formation of hemoglobin	Whole cereals, fish
Calcium	Allows muscle contraction and clotting of blood	Dairy foods, beans
Potassium	Controls nerve and muscle activity, fluid balance, secretion of neuro transmitter	Banana, potato

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